Combined yarn guiding, clearing, and tension device for warping-machines, &amp;c.



L. FESSMANN & G. HMMERLB. y

COMBINED YARN GUIDING, CLEARING, AND TENSION DEVICE POR WARPINGMACHINES, (Sw. APPLICATION FILED NOV. 2G, 1909.

1,034,775. Patented Aug. 6, 1912.

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LOUIS FESSMANN AND GEBHARD HMMERLE,

0F AUGSBURG, GERMANY.

COMBINED YARN GUIDING, CLEARING, AND TENSION DEVICE FOR WARPING-MACHINES, &C.

Specification of Letters Patent.

Patented Aug. 6, V1912.

Application led November 26, 1909. Serial No. 529,956.

To all whom it may concern:

Be it known that we, LoUis FnssMANN and GERHARD HMMERLE, subjects of theGerman Emperor, and residing at Augsburg, Germany, have invented certainnew and useful Improvements in Combined Yarn Guiding, Clearing, andTension Devices for warping-Machines, &c., of which the following is aspecification.

Our invention is an improvement in combined yarn-guiding, clearing, anutension devices of the type herein illustrated. Such devices are termedin the art thread-valves or yarn-valves, and have been employed inconnect-ion with the bobbin-frame or creele of warping-machines and thelike. As heretofore constructed,` a device of the said type hascomprised, essentially, a glass guidering mounted in a holder above agroup of supply-bobbins or cops, and a plate resting upon the upper edgeor surface of the said ring and upon the yarn or thread which passesover the said surface aft-er passing up through the central opening ofthe ring, the said plate having combined therewith a stem movablevertically in a guide above the plate and ring, and the plate beingthereby held in proper working relations with respect to the ring, whilehaving freedom to rise and fall as variations occur in the thickness ofthe yarn or thread as it travels through between the ring and pla-te. lehave found in practice that A when the plate is connected firmly orrigidly with the stem or guide-pin the results are not altogethersatisfactory, inasmuch as a lump, loop, or other enlargement of any oft-he kinds commonly occurring on yarns or threads acts with a tendencyto tilt or incline the plate laterally, in passing between the plate andthe ring at one side of the center. When the plate is connected rigidlywith the stem or guide-pin the tendency of the latter to cramp and bindin its guide, as a result of the tendency to tilting of the plate,operates to cause the yarn or thread to be clamped and held betweenplate and ring, so as to become broken by the pull thereon, especiallyin the case of the larger lumps or other enlargements.

In accordance with our present invention we combine the plate looselywith the stem or guide-pin so as to give the plate freedom for sufcientindependent movement with relation to the stem or carrier to permitevery lump or other enlargement of t-he yarn or thread to pass readilythrough between the ring and plate.

In the accompanying drawing one construct-ionalform of embodiment of ourinvention is represented by In said drawing Figure l shows in sectionthe said embodiment of our invention. The guide and adjacent parts,including a portion of the supporting rail or channel bar are invertical section longitudinally of the said rail. Fig. 2 shows the partsof Fig. l mainly in side elevation, the rail or bar being represented inlongitudinal section. Fig. 3 shows the guide and adjacent parts invert-ical cross-section in the plane indicated by the dotted line 3, 3,of Fig. 4. Fig. 4 shows the parts of Figs. 1 and 2 entirely in sideelevation, with the addition of the plate lifting mechanism hereinafterdescribed.

Referring to the drawing, the screwthreaded, flanged member or boX toccupies an opening made vertically through rail or bar a and is securedfirmly by means of the nuts u and o to the said rail or bar a. The parte shown in the different figures of the drawings is the base of a bobbinor cop-carrier of the bank next above.-that to which the guide shownpertains, the screwthreaded portion of the member or boX z5 passingthrough a hole in the said base, and the said bobbin or cop-carrierbeing secured in place by means of the said member or box t and the nutsa o. The box or member t is perforated and serves as guide for the stemor guide pin Z and bushing c. The stem or pin is formed or otherwiseprovided at its bottom end with a collar b which fits loosely in acavity el in the under side of the guide plate m. This plate is hollowedout or made concave at its bottom side in order that it may rest mainlyby its margin upon t-he top of guide-ring p so as to diminish as much aspossible the friction of the thread 0 in passing outward between theplate m and t-he ring p. The said ring is supported on the frame a inknown manner by means of a clamp s.

The bushing c is fiXed on the stem or pin Z by means of a bolt m, whichextends out through a vertical slot in one depending fiange of the railor channel bar a, as shown bestin Figs. 3 and 4, the outer end of saidboltfprojecting over slide shown in said way of example.

figures. The said slide is held to the outer side of the said flange bymeans of screws 7c, 7c', the stems of which occupyhorizontally-extending slots 7011, 7G11, in the slide. These slotspermit the slide to reciprocate lengthwise. Lengthwise reciprocatorymovement is communicated Yto the slide in any convenient manner inpractice. le have shown herein, for instance, the slide engaged by onearm of a bell-crank 7a2, the other arm of the said bell-crank beingengaged with a vertical bar 7c3, the latter having a rack c'L engaging aspur-pinion fc5 on a shaft k6. Shaft 73' is, in practice, oscillated,e., turned first in one direction and then in the other, by suitableoperating connections not necessary to be shown, and thereby the bar ismoved up and down, and through the bell-crank horizontal movement isimparted to the slide 7c back and forth in the direction of its length.The slide f: is formed or provided with a nose or cam z' ivhich iscaused by the lengthwise reciprocating movement of the slide to passback and forth beneath the projecting bolt a', and by engagementtherewith acts to raise the said bolt, as Well as the bushing c, thestem or pin Z, and the plate m, thereby producing a periodic lift of theplate m to permit loose particles which have been disengaged from thepassing yarn or thread and held by the plate and ring to escape.Sufficient. clearance or space is provided for between the upper end ofthe bushing c and the upper end of the chamber Within Which such bushingworks in the flanged member or box t, to accommodate the liftingmovement of the bushing. lt will be perceived that plate m is capable oftilting movement relative to the stem or carrier l, and also capable ofvertical movement to a certain extent independently thereof.

The loose connection of the plate m with lthe stem or carrier Z formsthe subject of claims in our application for United States LettersPatent filed October 30, 1908, Serial No. 460,238.

le claim zl. The combination, with a frame and a 5o slide movablethereon, of a clamp attached to the frame, a perforated base carried bysaid clamp, a perforated box secured in said frame, a guide pin slidablein said box, a bushing in said box attached to said guide pin, a boltsecured to said bushing extending above said slide and adapted to belifted thereby, and a guide plate connected with said pin and normallyresting on said base.

2. The combination, with a frame and a so slide movable thereon, of aclamp attached to the frame, a perforated base carried by said clamp, aperforated box secured in said frame, a guide pin passing through saidbox, a bushing in said box attached to said pin, a bolt secured to saidbushing and coacting with and adapted to vbe lifted by said slide, and aguide plate connected. with play to said pin and normally resting onsaid base.

3. The combination, with a frame and a slide movable thereon, of a clampattached to the frame, a perforated base carried by said clamp, aperforated box secured in said frame, a guide pin passing through said7,5 box, a bushing in said box attached to said pin, a bolt secured tosaid .bushing and coacting with and adapted to be lifted by said slide,and a guide plate concaved on its bottom side connected with play tosaid pin so and normally resting on said base.

LOUlS FESSMANN. GERHARD HMMERLE.

Witnesses LoUis MUnLLnR, lVlairrHLDn R. HELD.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents,

Washington, D. C.

